Lens apparatus and image-pickup apparatus

Details Lens apparatus and image-pickup apparatus Lens apparatus and image-pickup apparatus

2011-08-23

2011-08-23

Hasan, Mohammed (Department: 2873)

Optical: systems and elements

Lens

With variable magnification

C359S819000, C359S822000, C359S824000

Reexamination Certificate

active

08004774

ABSTRACT:
A lens apparatus which has a small size but allows a higher magnification and an image-pickup apparatus including the lens apparatus are disclosed. The lens apparatus provides a variable magnification by moving a first lens and a second lens placed closer to an image plane than the first lens in the direction of an optical axis. The lens apparatus includes a first driving member which is rotated around the optical axis to move the first lens in the optical axis direction, a second driving member which moves the second lens by itself in the optical axis direction, and a driving mechanism which at least drives the rotation of the first driving member. The second driving member is moved in the optical axis direction relative to the first driving member by the rotation of the first driving member.

REFERENCES:
patent: 7595937 (2009-09-01), Yasuda
patent: 2002-277716 (2002-09-01), None
patent: 2004-109709 (2004-04-01), None

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